KSL0M411 Equivalent & Substitute Parts

Part Overview

The KSL0M411 is a tactile switch manufactured by C&K, featuring SPST-NO (Single Pole Single Throw - Normally Open) circuit configuration with 0.05A @ 32VDC contact rating. This through-hole mounted component is designed for momentary operation with top actuation and PC pin termination. The product is currently obsolete, making equivalent substitute parts necessary for ongoing design requirements and component sourcing.

Substiute Parts

KSL0M411

C&KIn Stock: 1203KSL0M411 Datasheet

Current PartRFQ

1571295-2

TE Connectivity ALCOSWITCH SwitchesIn Stock: 10191571295-2 Datasheet

SimilarRFQ

TL6100DF300QP

E-SwitchIn Stock: 4627TL6100DF300QP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KSL0M411 is determined by the following core parameters:

Primary Compatibility Criteria:

• Circuit configuration: SPST-NO
• Switch function: Off-Mom (momentary operation)
• Contact current rating: 0.05A minimum
• Mounting type: Through Hole
• Actuator orientation: Top Actuated
• Termination style: PC Pin

Secondary Compatibility Considerations:

• Contact voltage rating: Must support application voltage requirements
• Mechanical life: Minimum 100,000 cycles preferred for equivalent reliability
• Operating temperature range: Must encompass application operating conditions
• Physical outline: Similar footprint for PCB compatibility

The identified substitute parts (1571295-2 and TL6100DF300QP) maintain the core SPST-NO momentary switch architecture with through-hole PC pin termination. Variations in voltage rating, actuator height, operating force, and mechanical life reflect design trade-offs between manufacturers while preserving functional equivalence for low-current switching applications.

Parameter Comparison

Engineering Selection Recommendations

1571295-2 (TE Connectivity ALCOSWITCH):

• Active product status with ROHS3 compliance
• Suitable for applications operating at 24VDC or lower
• Enhanced mechanical life (1,000,000 cycles) provides extended service reliability
• IP67 ingress protection rating exceeds KSL0M411 specifications
• Lower actuator height (5.00mm) requires PCB layout verification
• Reduced operating force (160gf) may affect tactile feedback characteristics

TL6100DF300QP (E-Switch):

• Active product status with ROHS3 compliance
• Suitable for applications operating at 12VDC or lower
• Mechanical life (500,000 cycles) provides intermediate reliability between main part and TE Connectivity option
• Matching operating force (300gf) maintains tactile response consistency with KSL0M411
• Actuator height (10.00mm) closely aligns with original design
• Operating temperature range (-40°C ~ 85°C) covers most industrial applications

Selection between substitute parts depends on application voltage requirements and mechanical life expectations. Both alternatives provide active product status and modern compliance certifications, addressing the obsolescence of the KSL0M411.

Frequently Asked Questions (FAQ)

Q: Can the 1571295-2 be used in a 32VDC application? A: No. The 1571295-2 is rated for 0.05A @ 24VDC maximum. Applications requiring 32VDC operation must use a substitute rated for that voltage or higher.

Q: What is the primary difference between the two substitute parts? A: The main differences are contact voltage rating (1571295-2 at 24VDC vs. TL6100DF300QP at 12VDC), mechanical life (1,000,000 vs. 500,000 cycles), and actuator height (5.00mm vs. 10.00mm). Both maintain SPST-NO momentary switch functionality with PC pin through-hole termination.

Q: Will the different actuator heights affect PCB compatibility? A: Yes. The KSL0M411 has 9.90mm actuator height. The 1571295-2 (5.00mm) is significantly shorter and may require enclosure design changes. The TL6100DF300QP (10.00mm) is nearly equivalent and typically requires minimal layout modification.

Q: Are both substitute parts RoHS compliant? A: Yes. Both 1571295-2 and TL6100DF300QP are ROHS3 compliant, whereas the KSL0M411 is RoHS non-compliant. This compliance improvement is beneficial for modern manufacturing and regulatory requirements.

Q: Which substitute offers better environmental protection? A: The 1571295-2 provides IP67 rating (dust tight and waterproof), compared to the KSL0M411's IP60 rating (dust tight only). The TL6100DF300QP does not specify an ingress protection rating.

Q: Can these parts be used interchangeably in the same PCB design? A: Direct interchangeability depends on application voltage, mechanical life requirements, and physical constraints. Actuator height differences and voltage ratings must be verified against specific design requirements before substitution.